Another warning light problem?!

Trufles · 03-07-2006, 01:51

Having had the power steering sensor recently replaced on my 2001 fabia i am happy to report that the warning light for this has not been on once since - result!

However, as cars are rather fond of games, i now have another warning light to ponder over on my dash!

On turning the ignition on first thing in the morning, my water temp warning comes on - it buzzes and flashes furiously at me! It doesnt happen every time, and if i run the engine till its warm, turn it off and then on again the warning stays off!

One thing i have noticed, it has only done this since the weather here in the south has improved - the hotter the morning, the more likely it is to happen!

My garage says it could be sensor, thermostat or any number of things but as its so far, an intermittent problem with no definite set pattern of when it will happen they cant really suggest anything other than drive it and see what happens, and if the temp gauge rises over the norm to pull in!

Has anyone else had this? Any ideas would be gratefully recieved!!

Thanks all

Lummox · 03-07-2006, 07:20

Is it a 1.4 MPI?

If so its one of two things.

1. The coolant temp sensor is faulty.

2. The sensor which is part of the header tank is faulty or what is more likely is that the sensor is covered in oil and unable to work due to a head gasket leak. Changing the tank will work short term but it will happen again. Does the header tank appear clear? Or is it a bit murky?

fordfan · 03-07-2006, 07:49

Likely to be the sensor, it is part of the expansion tank. You can either clean the tank (wheel acid is good for this) or replace it.

03-07-2006, 01:51	#1
Trufles Briskodian Join Date: Mar 2006 Location: suffolk Posts: 24 Thanks: 0 Thanked 0 Times in 0 Posts	Another warning light problem?! Having had the power steering sensor recently replaced on my 2001 fabia i am happy to report that the warning light for this has not been on once since - result! However, as cars are rather fond of games, i now have another warning light to ponder over on my dash! On turning the ignition on first thing in the morning, my water temp warning comes on - it buzzes and flashes furiously at me! It doesnt happen every time, and if i run the engine till its warm, turn it off and then on again the warning stays off! One thing i have noticed, it has only done this since the weather here in the south has improved - the hotter the morning, the more likely it is to happen! My garage says it could be sensor, thermostat or any number of things but as its so far, an intermittent problem with no definite set pattern of when it will happen they cant really suggest anything other than drive it and see what happens, and if the temp gauge rises over the norm to pull in! Has anyone else had this? Any ideas would be gratefully recieved!! Thanks all

03-07-2006, 07:20	#2
Lummox Hairy Yeti Join Date: Sep 2003 Location: Newport Pagnell Posts: 21,320 Thanks: 18 Thanked 559 Times in 489 Posts	Re: Another warning light problem?! Is it a 1.4 MPI? If so its one of two things. 1. The coolant temp sensor is faulty. 2. The sensor which is part of the header tank is faulty or what is more likely is that the sensor is covered in oil and unable to work due to a head gasket leak. Changing the tank will work short term but it will happen again. Does the header tank appear clear? Or is it a bit murky? __________________ Unit 18 now open Servicing, repairs, modifications you name it we do it. Cupra console bushes at special price, PM for a very competitive quote.

03-07-2006, 07:49	#3
fordfan ECUless Join Date: Mar 2005 Posts: 1,848 Thanks: 28 Thanked 209 Times in 182 Posts	Re: Another warning light problem?! Likely to be the sensor, it is part of the expansion tank. You can either clean the tank (wheel acid is good for this) or replace it.

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